You're obviously going to replace the versions below with the actual versions you're releasing, and not just copy it verbatim and expect magical things to happen.
git checkout libpact_ffi-v0.0.7
cd conan/lib/
conan create . pact/beta
conan upload pact_ffi/0.0.7@pact/beta -r=pact-foundation
git checkout libpact_ffi-v0.0.7
cd conan/dll/
conan create . pact/beta
conan upload pact_ffi_dll/0.0.7@pact/beta -r=pact-foundation